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<h2 class="title">
<a id="release-notes-7.5.2"></a>Elasticsearch version 7.5.2<a class="edit_me edit_me_private" rel="nofollow" title="Editing on GitHub is available to Elastic" href="https://github.com/elastic/elasticsearch/edit/7.7/docs/reference/release-notes/7.5.asciidoc">edit</a>
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<h3>
<a id="enhancement-7.5.2"></a>Enhancements<a class="edit_me edit_me_private" rel="nofollow" title="Editing on GitHub is available to Elastic" href="https://github.com/elastic/elasticsearch/edit/7.7/docs/reference/release-notes/7.5.asciidoc">edit</a>
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<div class="variablelist">
<dl class="variablelist">
<dt>
<span class="term">
Features/Ingest
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Fork recursive calls in Foreach processor <a href="https://github.com/elastic/elasticsearch/pull/50514" class="ulink" target="_top">#50514</a>
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Infra/Core
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Fix unintended debug logging in subclasses of TransportMasterNodeAction  <a href="https://github.com/elastic/elasticsearch/pull/50839" class="ulink" target="_top">#50839</a> (issues: <a href="https://github.com/elastic/elasticsearch/issues/50056" class="ulink" target="_top">#50056</a>, <a href="https://github.com/elastic/elasticsearch/issues/50074" class="ulink" target="_top">#50074</a>, <a href="https://github.com/elastic/elasticsearch/issues/50076" class="ulink" target="_top">#50076</a>)
</li>
</ul>
</div>
</dd>
</dl>
</div>
<h3>
<a id="bug-7.5.2"></a>Bug fixes<a class="edit_me edit_me_private" rel="nofollow" title="Editing on GitHub is available to Elastic" href="https://github.com/elastic/elasticsearch/edit/7.7/docs/reference/release-notes/7.5.asciidoc">edit</a>
</h3>
<div class="variablelist">
<dl class="variablelist">
<dt>
<span class="term">
Analysis
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Fix caching for PreConfiguredTokenFilter <a href="https://github.com/elastic/elasticsearch/pull/50912" class="ulink" target="_top">#50912</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/50734" class="ulink" target="_top">#50734</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
CRUD
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Block too many concurrent mapping updates <a href="https://github.com/elastic/elasticsearch/pull/51038" class="ulink" target="_top">#51038</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/50670" class="ulink" target="_top">#50670</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Engine
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Account soft-deletes in FrozenEngine <a href="https://github.com/elastic/elasticsearch/pull/51192" class="ulink" target="_top">#51192</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/50775" class="ulink" target="_top">#50775</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Features/ILM+SLM
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Fix SLM check for restore in progress <a href="https://github.com/elastic/elasticsearch/pull/50868" class="ulink" target="_top">#50868</a>
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Features/Ingest
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Fix ingest simulate response document order if processor executes async <a href="https://github.com/elastic/elasticsearch/pull/50244" class="ulink" target="_top">#50244</a>
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Features/Java Low Level REST Client
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Improve warning value extraction performance in response <a href="https://github.com/elastic/elasticsearch/pull/50208" class="ulink" target="_top">#50208</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/24114" class="ulink" target="_top">#24114</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Machine Learning
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Fixes potential memory corruption or inconsistent state when background
persisting categorizer state. <a href="https://github.com/elastic/ml-cpp/pull/921" class="ulink" target="_top">#921</a>
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Mapping
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Ensure that field collapsing works with field aliases. <a href="https://github.com/elastic/elasticsearch/pull/50722" class="ulink" target="_top">#50722</a> (issues: <a href="https://github.com/elastic/elasticsearch/issues/32648" class="ulink" target="_top">#32648</a>, <a href="https://github.com/elastic/elasticsearch/issues/50121" class="ulink" target="_top">#50121</a>)
</li>
<li class="listitem">
Fix meta version of task index mapping <a href="https://github.com/elastic/elasticsearch/pull/50363" class="ulink" target="_top">#50363</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/48393" class="ulink" target="_top">#48393</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Recovery
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Check allocation ID when failing shard on recovery <a href="https://github.com/elastic/elasticsearch/pull/50656" class="ulink" target="_top">#50656</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/50508" class="ulink" target="_top">#50508</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
SQL
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Change the way unsupported data types fields are handled <a href="https://github.com/elastic/elasticsearch/pull/50823" class="ulink" target="_top">#50823</a>
</li>
<li class="listitem">
Optimization fixes for conjunction merges <a href="https://github.com/elastic/elasticsearch/pull/50703" class="ulink" target="_top">#50703</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/49637" class="ulink" target="_top">#49637</a>)
</li>
<li class="listitem">
Fix issue with CAST and NULL checking. <a href="https://github.com/elastic/elasticsearch/pull/50371" class="ulink" target="_top">#50371</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/50191" class="ulink" target="_top">#50191</a>)
</li>
<li class="listitem">
Fix NPE for JdbcResultSet.getDate(param, Calendar) calls <a href="https://github.com/elastic/elasticsearch/pull/50184" class="ulink" target="_top">#50184</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/50174" class="ulink" target="_top">#50174</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Search
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Fix upgrade of custom similarity <a href="https://github.com/elastic/elasticsearch/pull/50851" class="ulink" target="_top">#50851</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/50763" class="ulink" target="_top">#50763</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Security
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Always consume the request body of <code class="literal">has_privileges</code> API <a href="https://github.com/elastic/elasticsearch/pull/50298" class="ulink" target="_top">#50298</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/50288" class="ulink" target="_top">#50288</a>)
</li>
</ul>
</div>
</dd>
</dl>
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